Honestly I consider Cynthia a canonical lesbian pedophile that grooms Dawn. I'm not even trying to put a fetishistic spin on it, I've never played the gen 4 games due to disliking the entire dex so my entire exposure to Cynthia for 10+ years now is basically hentai, and most of it was with her and Dawn. Not only that, when gen 4 was new and I was in high school a girl told me she wanted to have sex with Cynthia and masturbated to her so I have just always kind of thought that she had a gay vibe.
It's better this way honestly.